Nvm sorry for asking this question because i just found it under the definition of kai! it states this exact thing. (found on answers.com
Japanese: the original meaning is probably 'shell', but the name is written phonetically with two characters meaning 'first class' or 'shell', plus 'beauty'. Though the surname is found mostly in the island of Kyūshū, some families could have connections with the ancient province of Kai (now Yamanashi prefecture) in the mountains of central Honshū.
not your name. his name is Kai- as in K-I. Kai. NOT Kia. Kai.
Kai Lehtinen's birth name is Kai Antero.
Kai Schmidt's birth name is Kai Boerge Schmidt.
Kai Kokko's birth name is Kai Erik Kokko.
Kai Winding's birth name is Kai Chresten Winding.
Kai Pantano's birth name is Imran Kai Pantano.
Kai Nieminen's birth name is Kai Tapani Nieminen.
Kai Heimann's birth name is Kai Sophus Heimann.
Kai Havaii's birth name is Schlasse, Kai O..
Kai Savola's birth name is Kai Kari Savola.
Kai Trump's birth name is Kai Madison Trump.
Kai Issey's birth name is Kai Issey Lambert.